Home / 76,831.37-106,019.51-42,836.66

Finding the Fourth Proportional to 76,831.37, 106,019.51 and 42,836.66

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Solution

The fourth proportional to 76,831.37, 106,019.51 and 42,836.66 is: 59,110.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,831.37 : 106,019.51 = 42,836.66 : x
  2. Step 2: Convert to fraction form
    76,831.37/106,019.51 = 42,836.66/x
  3. Step 3: Cross multiply
    76,831.37x = 106,019.51 × 42,836.66
  4. Step 4: Simplify right side
    76,831.37x = 4,541,521,703.24
  5. Step 5: Solve for x
    x = 4,541,521,703.24/76,831.37
  6. Step 6: Final answer
    x = 59,110.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.